Jehovah's Witnesses were once The International Bible Students. As a child I was told they renamed themselves but as an adult, I discovered that a schism occurred in the 1920's and the now known Jehovah's Witnesses re-branded themselves under Rutherford.
Also, doing research of the name of Jehovah will inevitably reveal that it is unpronounceable in Hebrew and therefore, an invention that came after the names 'El' and 'Yahweh'.
Yes, even God and religion evolve.